Were You Born in an H1N1 Flu Year or an H3N2? It Matters sh ytlk Uncategorized February 12, 2020 1 Minute Knowing who is at a higher risk each year could help tailor pandemic and epidemic planning, the researchers say. Read More Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... Related Published February 12, 2020